Improvement in corner-beads for plastering



` ATH/Enron. y Burner-Beads for Plzqlstering. No {69207,} Y Patented Sept. 23,1875,

UNITED STATES PATENT OFFICE.

GALEN P. ATHER'ION, OF WORCESTER, MASSACHUSETTS, ASSIGNOR OF ONE-HALF HIS RIGHT TO SHERMAN FLETCHER, OF SAME PLACE.

IMPROVEMENT IN CORNER-BEADS FOR PLAS-TERING.

Specification forming part of Letters Patent No.168,207, dated September 28, 1875; application led January 19, 1875.

To all whom 'it 'may concern Be it known that I, GALEN P. ATHERTON, of Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Corner-Beads for Plastering; and I do hereby declare that the following is a full, clear, and exact de- Y with lath and plastering in position.

My invention consists in a corner-bead for plastering, having at its sides projecting ribs or iianges, which extend into the substance of the plastering, as and for the purposes hereinafter set forth.

In the drawings, A denotes the main body or cylindrical 4portion of the beading. B B indicate the angle-anges, which fit against the corner of the partition-stud C. D and E indicate, respectively, the lathing and plastering. At each side of the beading, near the junction of the cylindrical portion A with the angle-flanges B, I form side ribs or flanges F, which project outward in opposite directions from the neck of the beading, in the manner shown. The rear portion ofthe rib Fis rounded off toward the front, as at a, while the front portion is formed 'with a straight surface, somewhat corresponding with the angle of the finish quirk d ofthe plaster, the central or outer part of the -rib being somewhat thicker than the part where it joins the main body of the beading.

Among the advantages incident to this method of forming the corner-beading may be mentioned the following :NTh'e side ribs F give a greater amountpfwnstpckatfthe neck of the bead S9.rhmtlnreineehliiy 0f Splitting the cylindrical portion from the angleianges B when putting up the beads or laying the plastering', as frequently occurs with the grooved beading. The plaster, when laid on, readily passes the rounded portions of the ribs, and lls into the spaces between the ribs and angleflanges, thus requiring no extra care to insure a close joint between the bead and plaster. The form and position of the ribs F are such that they act as dovetails set into the substance ofthe plaster, and not only prevent the edges of the plasteringfrom springing outward, but also hold the plaster from i ward to a greater or less degree a greater or less amount of plaster may beleft covering the rib F at the face of the quirk.

I am aware that corner beads having grooves or channels at the sides, in which to clinch the mortar or plaster, have heretofore been patented and used, and I do not herein make claim to such as my invention; but

What I'do claim as new and of my invention, and desire to secure by Letters Patent,

A corner bead for plastering, when constructed with the projecting side ribs or flanges F, combined with the main body A and angleflanges B, substantially as and for the purpose described.

GALEN P. ATHERTON.

Witnesses CEAS.` H. BURLEIGH, EDGAR T. ANDREWS. 

